TY - JOUR
T1 - Coupling Simulation of Thermal Response to Exhaust Gas at External Nozzle
AU - Fujii, Ken
AU - Matsuo, Akiko
AU - Oki, Junichi
AU - Taguchi, Hideyuki
AU - Chiga, Takahiro
AU - Ikeda, Yutaka
N1 - Funding Information:
This work was supported by Japan Society for the Promotion of Science KAKENHI grant number JP20H05654. The author would like to extend his appreciation to Akiko Matsuo, who helped and supported enthusiastically in completing this report. Moreover, he would like to thank Junichi Oki, Hideyuki Taguchi, Takahiro Chiga, and Yutaka Ikeda for sharing the experimental dataset and for their useful discussion.
Publisher Copyright:
© 2022, AIAA International. All rights reserved.
PY - 2022/1
Y1 - 2022/1
N2 - This paper examines thermal response behind the high-Mach integrated control (HIMICO) experiment’s engine. In this experimental aircraft, instruments must be protected from heat load due to exhaust gas; therefore, a coupling calculation between the fluid and the wall is conducted to confirm the performance of HIMICO’s thermal protection system (TPS). First, the validity of the coupling calculation is confirmed through comparison with aerodynamic heating on a hollow cylinder. The present calculation result can reproduce the surface temperature distribution on the cylinder better than previous work has managed because we consider the turbulence effect. Second, one-dimensional heat-transfer analysis is conducted on the external nozzle, and the appropriateness of the calculation result is confirmed through comparison with the ramjet-engine experiment. Finally, a coupling calculation between the fluid and the wall is conducted to investigate the local temperature distribution. The calculation result indicates that the temperature increase easily meets design requirements and that TPS performance is sufficient.
AB - This paper examines thermal response behind the high-Mach integrated control (HIMICO) experiment’s engine. In this experimental aircraft, instruments must be protected from heat load due to exhaust gas; therefore, a coupling calculation between the fluid and the wall is conducted to confirm the performance of HIMICO’s thermal protection system (TPS). First, the validity of the coupling calculation is confirmed through comparison with aerodynamic heating on a hollow cylinder. The present calculation result can reproduce the surface temperature distribution on the cylinder better than previous work has managed because we consider the turbulence effect. Second, one-dimensional heat-transfer analysis is conducted on the external nozzle, and the appropriateness of the calculation result is confirmed through comparison with the ramjet-engine experiment. Finally, a coupling calculation between the fluid and the wall is conducted to investigate the local temperature distribution. The calculation result indicates that the temperature increase easily meets design requirements and that TPS performance is sufficient.
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U2 - 10.2514/1.A35018
DO - 10.2514/1.A35018
M3 - Article
AN - SCOPUS:85123639310
SN - 0022-4650
VL - 59
SP - 260
EP - 270
JO - Journal of Spacecraft and Rockets
JF - Journal of Spacecraft and Rockets
IS - 1
ER -